Raymarine M81120 Installation Manual page 14

All manuals and user guides at all-guides.com
Hydraulic Pump - Installation Guide
4. Connecting to the course computer
WARNING: Electrical safety
Make sure the power supply is switched off before you make any
electrical connections.
The hydraulic pump has electrical connections for its motor: a red and
a black cable.
Note: To meet current EMC legislation, you must NOT untwist the
pump cables, and you must NOT remove the suppression ferrite.
Follow these steps to connect the pump motor to the course computer:
1. Measure the distance of cable run from the pump to the course
2. Join these cables to the ones on the pump using appropriate
3. Route the cables back to the course computer, taking into account
4. Connect the cables from the pump to the MOTOR terminals on the
Note: If installing the pump on a boat with mechanical steering, you
need to connect a bypass valve to the CLUTCH terminals (see page 14).
Figure 8: Course computer connections
computer, then use Table 2 to identify the appropriate cable sizes.
electrical connectors or junction boxes at the correct power rating.
the EMC installation guidelines (page 6).
course computer (see Figure 8): at this stage you can connect
either motor cable to either terminal. You will check these
connections after installing the rest of the autopilot system.
– +
A B
OFF
POWER MOTOR
SOLENOID
SWITCH
Type 150/400 course computer
– – – +
–
lk CLUTCH
CLUTCH
Type 100/300 course computer
13
+ – +
1 2
POWER MOTOR
D5171-1